The keyboard was working perfectly before 15 February. During 15-24 February period I didn't use it at all, and today (25 February) it doesn't work. During this time I installed drivers to pciexpress usb 3.0 and a couple of windows updates. I uninstalled them both, but still no luck.

The keyboard works both in BIOS and other computers, so both USB port and the keyboard are fine. I once managed to use it in Windows after restart (not sure how) but it stopped working after a couple of minutes (perhaps it tried to find "better" drivers?).

I don't care if it'll be recognized as Microsoft Keyboard, generic USB keyboard driver would be just fine, but choosing it from drivers list doesn't help.

I tried to remove all keyboard-related devices from Device manager and rebooting.

1 Answer
1

Try un-installing the driver for the keyboard and re-installing them manually. You should be able to find the driver on Microsoft's website. By doing this, you're basically doing a full reset, so if this doesn't work, it may mean that the keyboard or USB port is faulty.

How do I uninstall the driver? If you mean: to remove any Microsoft-keyboard-related software and click "uninstall" on partially-recognized device in Device Manager, this doesn't help. As I said, the keyboard is working perfectly before Windows boot, so it's a software issue.
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MattFeb 25 '14 at 13:00

That is correct, and you need to install the corresponding driver too.
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brian724080Feb 26 '14 at 6:38